wp-cli/wp-cli — pull request #295 by ocean90 (2013-02-10 11:19:22+00:00)
Title: Fix error output if no WordPress install exists

Switch to a dir, where no WordPress install exists and execute `wp`. You get

$ wp
: This does not seem to be a WordPress install.

It should be

$ wp
Error: This does not seem to be a WordPress install.
Pass --path=`path/to/wordpress` or run `wp core download`.